HMH Tube Fly ToolTube fly tying techniques and patterns are evolving rapidly, making tube flies even more effective and hooking and landing all freshwater and saltwater gamefish. Our complete line of top quality tubes and tube accessories has been carefully designed and developed over the last 25 years to give the right tube for any tube fly application. Our plastic tubes are formulated to work well in all water and weather conditions, and to stand up to any pattern.